Jim doesn't seem like a guy who goes to the cops because someone gave him a couple of kicks. I think he may handle the situation himself.
I'm kind throwing away my Cath theory, she seemed too surprised by Trish's confession and she was suitably horrible in the way I expect she would be if it was new news.
The webcam theory from the thread for the last episode is pretty inspired, I think that could be exactly what the ex-husband is up to. Although I think him coming in at the end of the episode is just his lack of anywhere else to go.
The serial nature of these rapes is really interesting now. Who's only there during the summer? Or who has time during the summer, the ex-hubbie is a teacher but it seems a bit contrived that he's a serial rapist who then decided to rape his ex-wife. I think its more likely the caravans are important but I don't think that makes sense for Ed. TBH I don't think any of our main suspects did it, just like season one they are a parade of red herrings. Who lived in the caravans in season 1? Pauline Quirkes character was a right weirdo but she didn't do it, who else was involved with her? Maybe psychic Steve, he was a total loon.
And am I the only completely fed up of boring, moaning Paul? "oh no one wants my help" boo hoo, get over it.